This paper presents three trajectory tracking control strategies for unicycle-type robots based on a leader-followers scheme. The leader robot converges asymptotically to a smooth trajectory. while the follower robots form an undirected open-chain configuration at the same time. It is also shown that the orientation angles of all the robots converge to the same value. https://www.ealisboa.com/top-offer-Birkenstock-Arizona-Eva-Beetroot-Purple-best-save/